Reversible heating or cooling radiator



April 23, 1929. v P. P. HENSHALL 1,710,579

REVERSIBLE HEATING OR COOLING' RADIATOR Filed Jan. 25, 192'? /o T T 1 T iw: il im. /2 f//f/ T f 1 /5 ngz 5 v '5 la l 'Wi ifi fz BY/Qs ATTORNEY Patented Apr.` 423, 1,929.

UNITED S'IMi-:s

PATENT OFFICE.

PERCIVAL P. HENSHALL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 JOHN J. NESBITT ING., OF PHILADELPHIA, PENNSYLVANIA, A CORIORATION OF NEW JERSEY.

REVERSIBLE HEATING OR COOLING RADIATOR.

Application filed January 25, 1327. Serial No. 163,536.

This invention relates to radiators and more particularly to a novel and improved header and n construction embodied in a heating or cooling radiator.

One of the objects of my invention is to provide a radiator which is extremely light in construction having a maximum heating area or surface and capable of being installed at any desired location within a casing or housing and within the path of ainatural or artificial draft of air to be either heated or cooled preliminary to its plates inpositive thermal contact therewith,

said .tubes and iins bein capable of adjustment relative to the hea ers as a unit whereby a natural or artificial heating or cooling medium may be directed the fins. y

To enable others skilled in the art to more fully comprehend the underlying features ofemy invention thatthey may embody the same in the many practical advantages over similar devices employed for the uses and Apurposes hereinafter to be pointed out in more detail, reference is Vhad toa preferred form of the' invention in which I b Fig. 1 is a front view showing the radiator, parts being broken away to illustrate the finsl or plates.

Fig. 2 is a top plan. Fig. 3 is an end view of the inlet header. Fig. 4: is a sectional view taken on the line A4:-41 of Figure 3.

Fig. 5 and Fig. 6 are front and edge views respectively showing the copper fins or plates. i

Referring now tov the drawings wherein like reference numerals designate y correthrouglr or between spending parts throughout the several views, 5 designates in its entirety a header provided with an outside boss 6, internally threaded at 7 for connection to a steam pipe for instance, not shown. The header is preferably rectangular, the steam inlet 8` com municating with the interior chamber 9 as clearly shownby Fig. 4 of the"r drawing.

The inner face of the header is formed with four bosses 10 which are faced, turned and flanged with a male thread 11 for connection to the copper tubes, further to be described. The opposite header is similar in construction and may be provided with a drain or outlet 12 somewhat smaller in diameter than the inlet- 8. v

Between the headers, there is provided an assembly of copper tubes 13, substantially of the same inter1or diameter as the interior 'diameter of the bosses 10, being arrangedl for connection therewith. `Each end of the y copper tubes are spun or flanged as indi-y cated at .14 and'preliminary'to the spinning or flangmg of said ends, nuts 15 which are interiorly threaded and provided with ali 16 are positioned on the copper tubes whic prevent the nuts 'from becoming discennected. v Thethreaded nuts 15 are'adapted to cooperate'with the threaded'bosses so that when tightened, the spun Jor flanged: ends 14 abut and are brought intol intimate contac with the header faces.'

The copper tubes 13 also support a series of copper fins or plates 17, each havin annular flanges or bosses. 18 which in this type of radiator are pressed on to the tubes under a pressure. of substantially 680()v No outside connecting or binding pounds. medium orY agency, such as soldering, tinning or 'dipping is required and positive thermal contact between the surface of the tubes and the fins is made. The pressure required de-` pends to a great extent u )on the resistance of the material employe the size of the' tubes and lthe fins and the diameters of the tubes and the annular flanges or bosses 18 ,since it will be understood that the diameter of theitubesimust be slightly less than thef slid over the core.

heat present a maximum surface to the air being. blown through or between the fins. In the details shown by Figs. 5 and 6 it will be noted t-hat Ithe fins are provided with bent edges 19, 20, which when positioned on `.the tubes are in contact with but which uniformly space the tins throughout their length.

As shown by Fig. 1 of the drawing, the tubeand fin assembly are disposed to permit air to be blown up between the said fins which act as heat conductors, the heat radiating from the tubes containing the heating medium. Under different conditions and when it is desired to discharge the air horizontally between the tins, instead of furnishing a new radiator, it is only necessary to detach the headers by loosening the nuts 15 yand then revolving the lin section with the tubes through ninety degrees and then tighten the nuts to the headers. Tlie'bent edges of the fins will thus be at the top and bottom instead of at the front and back with the result that the radiator may be employed in the same capacity whether it is desired to blow air up between the fins vertically or in a horizontal direction.

x I am aware that other types of fin radiators have been manufactured in which contact between the` tubes and fins have been effected by lead dipping and soldering and in other instances where the fins are merely These practices have all been found to be objectionable either because of the introduction of a film of metal between the core and the fins or an. air gap causing more resistance to the heat to travel.

However, by forcing the fins on to the'tube under a very high pressure, the copper tube andthe copperfin are practically fused 'producing'a perfect thermal contact In the square or boX type of radiator above shown and described, the tubes are arranged and located symmetrically with ref lation to the distance that the heat must travel so that all parts of the fin will acquire as near a uniform heat as possible. By cofinecting headers in-this type of fin radiator as above described, it will be seen that the outlet or drain will be disposed inthe lowest free -of a connecting medium, and means for locking the ends of saidtubes against the inner faces of the headers, said tubes and ins being adjustable as a unit. relative to said headers.

2. A radiator of the class described comprising end headers having an inlet and outlet respectively, a plurality of fluid conducting tubes between said headers, a series of closely associated lins mounted. on said .tubes free of a connecting medium and means for locking the ends of said tubes against the inner faces of the headers, said tubes and fins being reversible as a unit relative to said headers whereby air may be directed between said fins in at least two positions.

3. A radiator of the class described comprising end headers having an inlet and outlet respectively, threaded bosses on the inner faces of said headers, a plurality of fluid conducting tubes arranged in end to end relation with respect to said bosses, a series of closely associated fins mounted on said tubes free of a connectingmedium and means for' locking the ends of said tubes with the bosses, said tubesand Iins being reversible as a unit relative to said headers whereby air` may be directed between said fins in at least two positions.

4. A radiator of the class describedcomprising end headersr having an inlet and outlet respectively, threaded bosses on the inner faces thereof, a plurality of fluid conducting tubes having flanged ends arranged in end to end relation with saidbosses, a series of closely associated ns mounted on said tubes free of a connecting medium and threaded locking means connecting the said flan ed.

ends with the faces of said bosses, said tu es andlins being reversible as a unit relative to said headers whereby the air may be directed between said fins in a vertical or horizontal position.

5. A radiator of the class described comprising end headers provided with an inlet and an outlet respectively, hollow bosses onl the .inner faces ofeach of said headers, fluid conductlng tubes having spun ends arranged 1n end to end relation with said bosses, ns

carried by said tubes and locking nuts connecting the spun ends of the tubes with said bosses, .said tubes and fins being adjustable as a un1t relative to said headers whereby air may. be directed upwardly. between said fins 1n one position and horizontally between said fins in a second position.

. 6. A radiator of the class described comprising end headers provided with an inlet und an outlet respectively, threaded bosses on the inner faces of each of said headers, iuid conducting tubes having spun ends arranged in 'end to end' relation with said bosses, locking nuts on said tubes cooperating with the threaded bosses for drawing the spun ends into intimate thermal contact with the faces of said bosses and a series of closely associated fins mounted on said tubes in thermal contact therewith throughout the length thereof, said tubes and fins being adjustable relative to said headers whereby air may be directed between said fins in a vertical or horizontal direction.

7. A radiator of the class described comprising end headers' having bosses on the inner faces thereof, fluid conducting tubes arranged in end to end relation and locking nuts for drawing said ends into intimate contact with the faces of the bosses and a series of fins having spaced flanges joined to the tubes in thermal contact therewith throughout the length thereof and free of a connecting medium, said tubes and tins be- ,ing adjustable relative to said headers whereby air may be directed Vbetween the fins in either a vertical or horizontal direction. i

8. A radiator of the class described comprising end headers having an inlet and outlet respectively, bosses on the inner faces of said headers, fluid conducting tubes arranged in end to end relationand locking nuts for drawing said ends into intimate contact with the faces of the bosses and a series of fins fused to the tubes, said fins having bent edges arranged in contact relation, said tubes and fins being reversible as a unit and locked to the headers to permit air to be driven upward between said fins in one position and horizontally between said fins in a second position.

9. A radiator of the class described comprising end headers having an inlet and an outlet respectively, bosses on the inner faces of said headers, fluid conducting tubes having spun ends adapted to be set in end to lend relation with the bosses, a locking nuty for each end of each of the said tubes, a lip formed with each of the locking nuts whereby the spun ends of said tubes are drawn- PERCIVAL P. HENSHALL. 

